CN105260002A - Server POWER SUPPLY SYSTEM AND CONTROL METHOD THEREOF - Google Patents

Server POWER SUPPLY SYSTEM AND CONTROL METHOD THEREOF Download PDF

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Publication number
CN105260002A
CN105260002A CN201510400374.7A CN201510400374A CN105260002A CN 105260002 A CN105260002 A CN 105260002A CN 201510400374 A CN201510400374 A CN 201510400374A CN 105260002 A CN105260002 A CN 105260002A
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CN
China
Prior art keywords
power supply
supply unit
communication port
server
load
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CN201510400374.7A
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Chinese (zh)
Inventor
杨子岷
黄廷熙
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Lite On Technology Corp
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Lite On Technology Corp
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Publication of CN105260002A publication Critical patent/CN105260002A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G01R31/42—AC power supplies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode

Abstract

The embodiment of the invention discloses a server power supply system and a control method thereof. The control unit of the power supply generates a wake-up signal or a sleep signal according to the load state. The first communication port of each power supply is coupled to the second communication port of the previous power supply, and the second communication port of each power supply is coupled to the first communication port of the next power supply to form a cascade communication architecture. The first communication port receives a wake-up signal of the second communication port of the previous power supply and outputs a sleep signal to the second communication port of the previous power supply, and the second communication port receives a sleep signal of the first communication port of the next power supply and outputs a wake-up signal to the first communication port of the next power supply. The technical scheme of the embodiment of the invention can achieve the effect of energy saving.

Description

Server power supply supply system and control method thereof
Technical field
The present invention has about a kind of power supply unit, and particularly a kind of server power supply supply system and control method thereof.
Background technology
Please refer to Fig. 1, Fig. 1 is the schematic diagram of traditional 1+1 spare power supply system.Traditional 1+1 spare power supply system 1 comprises power supply unit 11,12, and power supply unit 11,12 Parallel opertation electric power is to load 2, and wherein voltage V1, V2 of exporting of power supply unit 11,12 and electric current I 1, I2 may be adjustable.Power supply unit 11,12 has equalizing control circuit 111,112 respectively, and equalizing control circuit 111,112 connects load distribution bus (loadsharebus) LSB.In order to balanced load, may have current-sharing signal at each power supply unit of redundant framework, current-sharing signal coupling is to the load distribution bus LSB be connected between each power supply unit.Each power supply unit can be designed and set with driving power supply line to the voltage being proportional to output current (power).Each power supply unit is monitored load distribution bus LSB and is attempted increasing or reduce output current to meet the voltage on load distribution bus LSB.By the method, load can be divided equally by two or more power supply unit.Traditionally, power supply unit 11,12 is with master slave relation (Master-slave) setting, and such as power supply unit 11 is primary power supply (Master), and power supply unit 12 is from power supply unit (Slave).Equalizing control circuit 111,112 in order to receive the current-sharing signal of load distribution bus LSB, to learn the load condition that system is current.When system load is prescribed a time limit (such as lower than 60%) lower than the lower of a setting, primary power supply (11) notice enters sleep pattern (sleepmode), to reach energy-conserving action from power supply unit (12).Prescribe a time limit (being such as greater than 70%) when system load is greater than the upper of a setting, primary power supply (11) notice enters aggressive mode (activemode), to reach energy-conserving action from power supply unit (12).
But traditional technology can only be useful in 1+1 spare power supply system (set of system only has two power supply units).When system is N+1 spare power supply system (N be greater than 1 positive integer), the quantity of power supply unit is not fixed, and original control strategy cannot allow power supply unit correctly perform energy-conservation mechanism.
Summary of the invention
The embodiment of the present invention provides a kind of server power supply supply system and control method thereof, is the spare power supply system without master-slave mode and method, in order to the operator scheme according to load condition switching power supply, to reach energy-conservation effect.
The embodiment of the present invention provides a kind of server power supply supply system, comprises at least two power supply units.Described power supply unit connects a load distribution bus (loadsharebus), and in order to output power parallel to each other to load, each power supply unit is operable in aggressive mode or sleep pattern, and wherein a power supply unit determines level power supply supply as one of the power supply unit operating in aggressive mode.Each power supply unit comprises control module, the first communication port and second communication port.Control module connects load distribution bus, and produces wake-up signal or sleep signal according to the current-sharing signal from load distribution bus (loadsharebus), and current-sharing signal represents the load condition of described server power supply supply system.When the operation of power supply unit changes into aggressive mode by sleep pattern, control module makes the operation of power supply unit change into aggressive mode by sleep pattern according to the wake-up signal of the power supply unit coming from previous stage.When the operation of power supply unit changes into sleep pattern by aggressive mode, control module produces sleep signal.First communication port couples control module.Second communication port couples control module.First communication port of each power supply unit couples the second communication port of the power supply unit of previous stage, and the second communication port of each power supply unit couples the first communication port of the power supply unit of rear stage to form tandem communication construction.First communication port is in order to receive the wake-up signal of the second communication port output of the power supply unit of previous stage and to export the second communication port of sleep signal to the power supply unit of previous stage, and second communication port is in order to receive the sleep signal of the first communication port output of the power supply unit of rear stage and to export first communication port of wake-up signal to the power supply unit of rear stage.
In an embodiment, when this current-sharing signal is greater than a threshold values, this control module operating in this power supply unit of the afterbody of described at least two power supply units of this aggressive mode exports this wake-up signal this first communication port to this power supply unit of rear stage by this second communication port, changes into this aggressive mode to make the operation of this power supply unit of rear stage by this sleep pattern.
In an embodiment, when this current-sharing signal is less than a threshold values, this control module operating in this power supply unit of the afterbody of described at least two power supply units of this aggressive mode exports this sleep signal this second communication port to this power supply unit of previous stage by this first communication port, and makes the operation of this power supply unit change into this sleep pattern by this aggressive mode.
In an embodiment, this current-sharing signal is a magnitude of voltage, and this magnitude of voltage is proportional to the load of server power supply supply system.
In an embodiment, described at least two power supply units sequentially enter aggressive mode according to the increase of this load, and inverted sequence enters sleep pattern according to the minimizing of this load.
In an embodiment, also comprise:
One back plane circuitry; couple this first communication port and this second communication port of each this power supply unit; wherein when this power supply unit of an intergrade is shut down, this back plane circuitry makes this second communication port of this power supply unit of previous stage couple this first communication port of this power supply unit of rear stage.
In an embodiment, this back plane circuitry has at least one switch, is connected with the signal of this second communication port in order to make this first communication port of this power supply unit corresponding to this switch.
In an embodiment, this threshold value is a magnitude of voltage, one of this magnitude of voltage representative server power system default load number percent.
In an embodiment, this threshold values is a magnitude of voltage, and this magnitude of voltage is 70% ~ 80% load of server power supply supply system.
In an embodiment, this threshold values is a magnitude of voltage, and this magnitude of voltage is 30% ~ 40% load of server power supply supply system.
The embodiment of the present invention provides a kind of control method of server power supply supply system, for server power supply supply system, server power supply supply system comprises at least two power supply units, described power supply unit connects a load distribution bus (loadsharebus), and in order to output power parallel to each other to load, each power supply unit can dynamically operate in aggressive mode or sleep pattern according to load state, and wherein a power supply unit determines level power supply supply as one of the power supply unit operating in aggressive mode.Each power supply unit has the first communication port and second communication port, first communication port of each power supply unit couples the second communication port of the power supply unit of previous stage, and the second communication port of each power supply unit couples the first communication port of the power supply unit of rear stage to form tandem communication construction.Described control method comprises the following steps: first, distributes the electric power that described power supply unit is provided to load according to the current-sharing signal of load distribution bus (loadsharebus).Then, when current-sharing signal is greater than the first threshold values, the decision level power supply supply operated in the described power supply unit of aggressive mode exports wake-up signal to the first communication port of the power supply unit of rear stage by second communication port, changes into aggressive mode with the operation of the power supply unit making rear stage by sleep pattern.When current-sharing signal is less than the second threshold values, the decision level power supply supply operated in the described power supply unit of aggressive mode changes into sleep pattern by aggressive mode, and exports the second communication port of sleep signal to the power supply unit of previous stage by the first communication port.
In an embodiment, this current-sharing signal is a magnitude of voltage, and this magnitude of voltage is proportional to the load of this server power supply supply system.
In an embodiment, also comprise:
When this power supply unit of an intergrade is shut down; coupled this first communication port and this second communication port of each this power supply unit by a back plane circuitry, make this second communication port of this power supply unit of previous stage couple this first communication port of this power supply unit of rear stage.
In an embodiment, this back plane circuitry has at least one switch, and the control method of this server power supply supply system also comprises:
Open this switch, be connected with the signal of this second communication port in order to make this first communication port of this power supply unit corresponding to this switch.
In an embodiment, described in distributing at this current-sharing signal according to this load distribution bus, at least two power supply units are provided in the step of the electric power of this load, also comprise:
Make formation tandem communication construction at least part of described at least two power supply units operate in this aggressive mode, wherein operate in this power supply unit of the afterbody in described at least two power supply units of this aggressive mode in order to notify sleep state this power supply unit to previous stage own, or wake this power supply unit of rear stage up.
In an embodiment, this first and this second threshold values be a magnitude of voltage, this first threshold values is identical with this second threshold values.
In an embodiment, this first and this second threshold values be a magnitude of voltage, this first threshold values is not identical with this second threshold values.
In an embodiment, this first threshold values is a magnitude of voltage, and this magnitude of voltage is 70% ~ 80% load of server power supply supply system.
In an embodiment, this second threshold values is a magnitude of voltage, and this magnitude of voltage is 30% ~ 40% load of server power supply supply system.
In an embodiment, this first communication port operating in this power supply unit of the afterbody in described at least two power supply units of this aggressive mode is different from the logic state of this second communication port.
In sum, the embodiment of the present invention provides a kind of server power supply supply system and control method thereof, utilize hardware framework and software to set all identical multiple power supply units and form tandem communication construction, and according to the load condition obtained by load distribution bus (loadsharebus), with the operator scheme of switching power supply, reach energy-conservation effect by this.
Further understand feature of the present invention and technology contents for enable, refer to following detailed description for the present invention and accompanying drawing, but these illustrate and appended accompanying drawing is only used to the present invention is described, but not any restriction is done to interest field of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of traditional 1+1 spare power supply system.
Fig. 2 A is the circuit block diagram of the server power supply supply system that the embodiment of the present invention provides.
Fig. 2 B is the view of the power supply unit of the server power supply supply system that the embodiment of the present invention provides.
Fig. 3 is the curve map of load to efficiency of the power supply unit that the embodiment of the present invention provides.
Fig. 4 is the thin portion circuit diagram of the server power supply supply system that the embodiment of the present invention provides.
Fig. 5 A is the process flow diagram of the control method of the server power supply supply system that example of the present invention provides.
Fig. 5 B is the process flow diagram of the control method of the server power supply supply system that another example of the present invention provides.
Fig. 6-1,6-2 and 6-3 are the process flow diagrams that the power supply unit of the 2+1 server power supply supply system that example of the present invention provides sequentially enters aggressive mode.
Fig. 7-1,7-2 and 7-3 are the process flow diagrams that the power supply unit inverted sequence of the 2+1 server power supply supply system that example of the present invention provides enters sleep pattern.
Wherein, description of reference numerals is as follows:
1:1+1 spare power supply system
11,12, PSU1, PSU2, PSU3, PSU4, PSUn: power supply unit
2: load
111,112: equalizing control circuit
I1, I2: electric current
V1, V2: voltage
LSB: load distribution bus
GND: ground connection
3,4: server power supply supply system
311,411: control module
CR1: the first communication port
CR2: second communication port
AW: wake-up signal
SL: sleep signal
S510, S511, S512, S520, S530, S540, S611, S612, S613, S621, S622, S623, S624, S625, S626, S631, S632, S633, S641, S642, S643, S644, S645, S646, S651, S652, S661, S662, S711, S712, S713, S721, S722, S723, S724, S725, S726, S731, S732, S733, S741, S742, S743, S744, S745, S746, S751, S752, S753, S761, S762, S771, S781, S782, S663, S664, S653, S666, S665, S772, S763, S773, S783: steps flow chart
S1, S2: switch
42: back plane circuitry
421,422: analog switch
4211,4212,4213: switch
VH: voltage
PG: power supply status end
A1, a2: input end
Embodiment
Following embodiment is the embodiment of server power supply supply system.
Please refer to Fig. 2 A, Fig. 2 A is the circuit block diagram of the server power supply supply system that the embodiment of the present invention provides.The server power supply supply system of the present embodiment comprises at least two power supply units, and server power supply supply system 3 comprises N number of power supply unit in the present embodiment, is respectively power supply unit PSU1, PSU2, PSU3, PSU4, PSUn.But, the number of the power supply unit of the present invention not included by Limited service device power system.Described power supply unit PSU1, PSU2, PSU3, PSU4, PSUn in order to output power parallel to each other to load 2, each power supply unit operates in aggressive mode (activemode) or sleep pattern (sleepmode), and each power supply unit comprises control module 311, first communication port CR1 and second communication port CR2.In addition, the power circuit such as voltage conversion circuit for electromotive power output of having of power supply unit itself is not illustrated in Fig. 2 A.
The control module 311 of each power supply unit connects load distribution bus (loadsharebus) LSB.First communication port CR1 and second communication port CR2 couples control module 311, first communication port CR1 of each power supply unit couples the second communication port CR2 of the power supply unit of previous stage, and the second communication port CR2 of each power supply unit couples the first communication port CR1 of the power supply unit of rear stage to form tandem communication construction.Specifically, the second communication port CR2 of power supply unit PSU1 couples the first communication port CR1 (namely the first communication port CR1 of power supply unit PSU2 couples the second communication port CR2 of the power supply unit of previous stage) of the power supply unit PSU2 of rear stage.The second communication port CR2 of power supply unit PSU2 couples the first communication port CR1 of the power supply unit PSU3 of rear stage.The second communication port CR2 of power supply unit PSU3 couples the first communication port CR1 of the power supply unit PSU4 of rear stage.The second communication port CR2 of power supply unit PSU4 couples the first communication port CR1 of the power supply unit (PSU5, not shown) of rear stage, and the rest may be inferred.The first communication port CR1 of last power supply unit PSUn couples the second communication port CR2 of the power supply unit (PSUn-1, not shown) of previous stage.
Each control module 311 can produce wake-up signal AW or sleep signal SL according to the current-sharing signal from load distribution bus LSB, and current-sharing signal represents the load condition of described power supply unit.In one embodiment, described current-sharing signal can be magnitude of voltage, and described magnitude of voltage is proportional to the load of server power supply supply system 3.But the present invention does not limit kind and the content of current-sharing signal, art has knows that the knowledgeable easily should understand the design of load distribution bus LSB and current-sharing signal thereof usually, repeats no more.The control module 311 of the present embodiment can comprise the function of the equalizing control circuit 111 (or 112) as Fig. 1, but other functions of the control module 311 of the present embodiment, refer to follow-up explanation.
When the operation of power supply unit PSU1 (or PSU2 or PSU3 or PSU4 or PSUn) changes into aggressive mode by sleep pattern, the control module 311 of power supply unit PSU1 (or PSU2 or PSU3 or PSU4 or PSUn) makes the operation of this power supply unit PSU1 (or PSU2 or PSU3 or PSU4 or PSUn) change into aggressive mode by sleep pattern according to wake-up signal AW.When the operation of power supply unit PSU1 (or PSU2 or PSU3 or PSU4 or PSUn) changes into sleep pattern by aggressive mode, the control module 311 of this power supply unit PSU1 (or PSU2 or PSU3 or PSU4 or PSUn) produces sleep signal SL.
In the present embodiment, the first communication port CR1 is in order to receive the wake-up signal AW that produces from the second communication port CR2 of the power supply unit of previous stage and to export the second communication port CR2 of sleep signal SL to the power supply unit of previous stage.The sleep signal SL that second communication port CR2 produces with the first communication port CR1 receiving the power supply unit of rear stage and export the first communication port CR1 of wake-up signal AW to the power supply unit of rear stage.First communication port CR1 and second communication port CR2 can design according to actual needs, such as the first communication port CR1 and second communication port CR2 can be numerical digit communication port, as serial bus (serialbus) or and column bus (parallelbus), but the present invention does not limit the kind of the first communication port CR1 and second communication port CR2.
Please refer to Fig. 2 B, Fig. 2 B is the view of the power supply unit of the server power supply supply system that the embodiment of the present invention provides.During 3 initial start of server power supply supply system, its power supply unit PSU1, PSU2, PSU3, PSU4, PSUn can set and be all aggressive mode, and the follow-up operator scheme of the power supply unit of part that then can make according to load condition changes into sleep pattern.The thin portion that the pattern of power supply unit PSU1, PSU2, PSU3, PSU4, PSUn switches illustrates and can refer to subsequent figure 6-1,6-2,6-3 and Fig. 7-1, the describing of 7-2,7-3 embodiment, first illustrate according to the pattern operated by power supply unit at this, and the state of its first communication port CR1 and second communication port CR2.In the present embodiment, first communication port CR1 and second communication port CR2 exports (or input) voltage level, when voltage level is noble potential, it represents high logic state (in program language for " 1 "), when voltage level is electronegative potential, it represents low logic state (in program language for " 0 ").For Fig. 2 B, all aggressive mode is set to according to load condition power supply unit PSU1, PSU2, PSU3, power supply unit PSU4 ... PSUn is then sleep pattern, now the logic state of the first communication port CR1 of power supply unit PSU1 is " 1 ", the logic state of second communication port CR2 is " 1 ", the logic state of the first communication port CR1 of power supply unit PSU2 is " 1 ", the logic state of second communication port CR2 is " and 1 ".And power supply unit PSU3 operates in the afterbody power supply unit in power supply unit PSU1, PSU2, PSU3 of aggressive mode, the logic state of the first communication port CR1 of power supply unit PSU3 is " 1 ", the logic state of second communication port CR2 is " and 0 ".Operate in the power supply unit PSU4 of sleep pattern ... the first communication port CR1 of PSUn and the logic state of second communication port CR2 are all " 0 ".From above example, in all power supply unit PSU1, PSU2, PSU3, PSU4, PSUn of server power supply supply system 3, only have the first communication port CR1 of a power supply unit (the power supply unit PSU3 as Fig. 2 B) different from the logic state of second communication port CR2, and this power supply unit operate in the afterbody power supply unit in power supply unit PSU1, PSU2, PSU3 of aggressive mode.
Specifically, with Fig. 2 B for example, power supply unit PSU3 operates in the afterbody power supply unit in power supply unit PSU1, PSU2, PSU3 of aggressive mode, power supply unit PSU3 can make the power supply unit PSU4 itself entering sleep pattern (simultaneously notifying the power supply unit PSU2 of previous stage) or wake rear stage up according to load condition, the operator scheme of other power supply unit is not then by the impact of power supply unit PSU3.Circuit operation actually, formed in power supply unit PSU1, PSU2, PSU3, PSU4, PSUn of tandem communication construction, power supply unit PSU1, PSU2, PSU3 also inverted sequence can enter sleep pattern according to the minimizing of load.On the other hand, power supply unit PSU1, PSU2, PSU3 sequentially can enter aggressive mode according to the increase of load, other Power Supplier PSU4 ... PSUn then maintains sleep pattern.Further, when load continuous increases, power supply unit PSU4 ... PSUn sequentially can enter aggressive mode.Such as: when 3 initial start of server power supply supply system, its power supply unit PSU1, PSU2, PSU3, PSU4, PSUn setting is all aggressive mode, and now power supply unit PSUn operates in the afterbody power supply unit in power supply unit PSU1, PSU2, PSU3, PSU4, PSUn of aggressive mode.Now the logic state of the first communication port CR1 of power supply unit PSUn is " 1 ", the logic state of second communication port CR2 is " and 0 ".During system initial start, whole power supply units can be set and be aggressive mode and the electric power of exportable 100% load.Then, when whether the control module 311 of afterbody power supply unit PSUn sentences actual loading lower than 100%, if load is lower than 100%, the mode of operation of power supply unit PSUn can be changed into sleep pattern, and now the first communication port CR1 of power supply unit PSUn exports sleep signal SL to the power supply unit PSUn-1 of previous stage.Specifically, the control module 311 of power supply unit PSUn can judge when current-sharing signal is less than the threshold values of a setting, the control module 311 of power supply unit PSUn exports the second communication port CR2 of sleep signal SL to the power supply unit PSUn-1 of previous stage by the first communication port CR1, and make the operation of power supply unit PSUn itself change into sleep pattern by aggressive mode, and the logic state of the first communication port CR1 and second communication port CR2 that can set power supply unit PSUn is all " 0 ".Accordingly, the afterbody power supply unit operated in the power supply unit of aggressive mode then changes into power supply unit PSUn-1, the logic state of the first communication port CR1 of power supply unit PSUn-1 is " 1 ", the logic state of second communication port CR2 is then because the sleep signal SL that the first communication port CR1 receiving power supply unit PSUn exports changes into " and 0 ".So, then change by power supply unit PSUn-1 continue according to load condition determine whether wake up next stage power supply unit PSUn (when load increase) or notice previous stage power supply unit PSUn-2 and make power supply unit PSUn-1 itself change into sleep pattern (when load reduce).Moreover, when load reduces further, then inverted sequence can make power supply unit PSUn-1, PSUn-2, PSUn-3 one by one ... etc. entering sleep pattern, such as, reach the mode of operation of Fig. 2 B.On the other hand, when current-sharing signal is greater than the threshold values of a setting, except last power supply unit PSUn, any one control module 311 as the afterbody power supply unit in the power supply unit of aggressive mode exports wake-up signal AW to the first communication port CR1 of the power supply unit of rear stage by second communication port CR2, changes into aggressive mode with the operation of the power supply unit making rear stage by sleep pattern.It should be noted that the quantity according to power supply unit, above-mentioned threshold values can be set as single or multiple.
Please refer to Fig. 3, Fig. 3 is the curve map of load to efficiency of the power supply unit that the embodiment of the present invention provides.The efficiency of each power supply unit changes according to load condition, and usually have the region that an efficiency is higher, such as, load shown in Fig. 3 is the region of 40%-80%.In order to the situation making each power supply unit may operate in greater efficiency as much as possible, the control module (311) of power supply unit can set the high threshold values (such as 80% load) that at least one corresponds to load condition, and current-sharing signal is compared with the threshold values of setting, and determine that whether make power supply unit itself enter sleep pattern or wake next stage power supply unit up all can with high efficiency manipulation with the power supply unit making to operate in aggressive mode, wherein threshold value is a magnitude of voltage, one of magnitude of voltage representative server power system default load number percent.Contrast Fig. 3, the present embodiment has two power supply unit PSU1 with server power supply supply system 3, PSU2 is that example illustrates, when only having power supply unit PSU1 to power, now system load equals the load of power supply unit PSU1, if threshold values is load 80%, as long as now system load is between 40%-80%, then power supply unit PSU1 all can operate with higher efficiency, when system load is greater than threshold values, then the efficiency of power supply unit PSU1 reduces, now can wake power supply unit PSU2 up to make power supply unit PSU1, PSU2 shares the load of more than 40% respectively, even if load increases further, power supply unit PSU1, PSU2 distinctly can operate in the high-level efficiency state of load between 40%-80%.Anti-, when load is less than threshold values again, power supply unit PSU1, PSU2 other load of parallel operation is less than 40% and cause efficiency to decline, now then makes power supply unit PSU2 change into sleep pattern, and makes power supply unit PSU1 independently responsible power supply.The setting number of threshold values can increase according to the number of the power supply unit of parallel connection, can analogize the situation to multiple power supply unit according to this.Therefore, according to set multiple threshold values, can make the power supply unit operating in aggressive mode all can with high efficiency manipulation.The present invention does not limit the size of threshold values and the quantity of threshold values.
Please refer to Fig. 4, Fig. 4 is the thin portion circuit diagram of the server power supply supply system that the embodiment of the present invention provides.There are three power supply units for example with server power supply supply system in the present embodiment to illustrate.Server power supply supply system 4 comprises three power supply units PSU1, PSU2, PSU3 and back plane circuitry 42 in the diagram.
The control module 411 that each power supply unit PSU1 or PSU2 or PSU3 all has a control module 411, Fig. 4 is a kind of implementations of the control module 311 of Fig. 2 A.For power supply unit PSU1, the switch S 1 of the first communication port CR1 connection control unit 411 and the switch S 2 of input end a1, second communication port CR2 connection control unit 411 and input end a2.When only having power supply unit PSU1 to operate in aggressive mode, switch S 1 closes (turnoff) makes the first communication port CR1 be high voltage level (3.3V, or be called CR1=1), and switch S 2 is opened (turnon) and is made second communication port CR2 be low-voltage position standard (ground connection, or be called CR2=0).When power supply unit PSU1 will wake the power supply unit PSU2 of next stage up, the control module 411 of power supply unit PSU1 makes switch S 2 temporarily switch to closedown (turnoff) and make the voltage of the second communication port CR2 of power supply unit PSU1 temporarily change into high voltage level (3.3V, or be called CR2=1), now the input end a1 of the control module 411 of power supply unit PSU2 receives high voltage level, and makes the operation change of power supply unit PSU2 be aggressive mode.In like manner, when power supply unit PSU2 will wake the power supply unit PSU3 of next stage up, its signal transmission mode is similar, repeats no more.Relative, at power supply unit PSU2, when PSU3 is waken up, when power supply unit PSU3 will switch to sleep pattern by aggressive mode, the control module 411 of power supply unit PSU3 makes switch S 1 temporarily switch to unlatching (turnon) and make the voltage of the second communication port CR2 of power supply unit PSU2 temporarily change into low-voltage position standard (ground connection, or be called CR2=0), now the input end a2 of the control module 411 of power supply unit PSU2 receives low-voltage position standard, it has become the afterbody power supply unit operated in the power supply unit of aggressive mode to make power supply unit PSU2 learn by this.In like manner, when power supply unit PSU2 will switch to sleep pattern, power supply unit PSU2 can notify power supply unit PSU1, learns that it has become the afterbody power supply unit operated in the power supply unit of aggressive mode to make power supply unit PSU1.Only when operating in the afterbody power supply unit in multiple power supply units of aggressive mode when power supply unit, this power supply unit just can export wake-up signal or sleep signal, and other power supply unit is then maintain the state receiving wake-up signal or sleep signal.So, the setting of each power supply unit all can be identical, and the control module (411) of each power supply unit is the signal condition of foundation the first communication port CR1 and second communication port CR2 and changes operator scheme.Multiple power supply units of described tandem communication construction can change operator scheme according to the wake-up signal of the afterbody power supply unit output operated in multiple power supply units of aggressive mode or sleep signal, and system user does not need to set individually each power supply unit.
Further, power supply unit PSU1, PSU2, PSU3 is all connected to back plane circuitry 42.Back plane circuitry 42 has analog switch 421,422.Analog switch 421,422 also can realize with other on-off circuits (comprising the software and hardware switch that other can realize similar functions), and therefore the present invention does not limit.Back plane circuitry 42 couples the second communication port CR2 of power supply unit PSU1 and the first communication port CR1 of power supply unit PSU3 by analog switch 421.Analog switch 422 is identical with analog switch 421, when using fourth power supply PSU4, analog switch 422 is in order to the first communication port CR1 of the second communication port CR2 and power supply unit PSU4 that couple power supply unit PSU2, if this server power supply supply system has more power supply unit and more analog switch, the rest may be inferred for coupling mode, repeats no more.Moreover when power supply unit PSU2 is connected to back plane circuitry 42, the voltage of the power supply status end PG received by analog switch 421 is high voltage level (namely setting PG=1).When the power supply unit (being power supply unit PSU2 in the diagram) of an intergrade shuts down (shutdown); the voltage of the power supply status end PG received by analog switch 421 changes (such as changes into ground connection; namely PG=0 is set), then the analog switch 421 of back plane circuitry 42 makes the second communication port CR2 of the power supply unit PSU1 of previous stage couple the first communication port CR1 of the power supply unit PSU3 of next stage.Specifically, as PG=0, switch 4211 is cut out, and then switch 4212,4213 is unlocked because of voltage VH, and the first communication port CR1 of the second communication port CR2 of previous stage power supply unit PSU1 and next stage power supply unit PSU3 will be coupled to each other.About the switching mode of above-mentioned analog switch 421,422, will further illustrate in Fig. 6-1,6-2,6-3 in subsequent embodiment.The rest may be inferred, have more than the function of the situation analog switch 422 of three power supply units and analog switch 421 function class seemingly, repeat no more.Accordingly, back plane circuitry 42 can make when the power supply unit of intergrade is temporarily shut down or removes, and maintains tandem communication construction.Therefore when carrying out keeping in repair or maintaining, operating personnel directly can carry out hot plug to this server power supply supply system 4, need not notify user terminal system.
Following embodiment is the embodiment of the control method of server power supply supply system.
Please refer to Fig. 5 A, Fig. 5 A is the process flow diagram of the control method of the server power supply supply system that example of the present invention provides.The control method of the server power supply supply system of the present embodiment, for the server power supply supply system 3 of previous embodiment Fig. 2 A or the server power supply supply system 4 of Fig. 4.Server power supply supply system comprises at least two power supply units, described power supply unit connects a load distribution bus (loadsharebus), and in order to output power parallel to each other to load, each power supply unit operates in aggressive mode or sleep pattern, each power supply unit has the first communication port (CR1) and second communication port (CR2), first communication port (CR1) of each power supply unit couples the second communication port (CR2) of the power supply unit of previous stage, the second communication port (CR2) of each power supply unit couples first communication port (CR1) of the power supply unit of rear stage, to form tandem communication construction.Described control method comprises the following steps: first, in step S510, distributes the electric power that described power supply unit is provided to load according to the current-sharing signal of load distribution bus (loadsharebus).In one embodiment, current-sharing signal can be magnitude of voltage, and described magnitude of voltage is proportional to the load of server power supply supply system.
Then, in step S520, current-sharing signal and the threshold values preset are made comparisons.In this embodiment, the described threshold values preset can be multiple threshold values.When current-sharing signal is greater than the first threshold values, then carry out step S530, allow decision level (afterbody) power supply unit operated in the described power supply unit of aggressive mode export first communication port (CR1) of wake-up signal (AW) to the power supply unit of rear stage by second communication port (CR2), change into aggressive mode with the operation of the power supply unit making rear stage by sleep pattern.Anti-, when current-sharing signal is less than the second threshold values, then carry out step S540, allow decision level (afterbody) power supply unit operated in the described power supply unit of aggressive mode change into sleep pattern by aggressive mode, and export the second communication port (CR2) of sleep signal (SL) to the power supply unit of previous stage by its first communication port (CR1).
In addition, when server power supply supply system comprises the situation of the back plane circuitry 42 (also comprising switch, as analog switch 421,422) as Fig. 4, the flow process of above-mentioned Fig. 5 A, can be revised as Fig. 5 B, adds step S511, S512 in figure 5b.First, carry out step S510, distribute the electric power that described power supply unit is provided to load according to the current-sharing signal of load distribution bus (loadsharebus).Then, the annexation of the second communication port CR2 of each power supply unit and the first communication port CR1 of its next stage power supply unit need be confirmed, and confirm the annexation of the first communication port CR1 of each power supply unit and the second communication port CR2 of its previous stage power supply unit, therefore step S511 is carried out, judge that whether the voltage status of the power supply status end PG of each power supply unit is normal, that is judge whether PG=1.When the voltage status of the power supply status end PG of each power supply unit is normal, then represent the annexation of the second communication port CR2 of each power supply unit and the first communication port CR1 of its next stage power supply unit, and the second communication port CR2 annexation of the first communication port CR1 of each power supply unit and its previous stage power supply unit is not interrupted, then nature can continue and carry out step S520, and S530 or S540, above-mentioned S520, S530, S540 can refer to previously for the explanation of Fig. 5 A, repeat no more.Anti-; when the power supply unit of an intergrade shuts down (shutdown) (PG ≠ 1); step S512 need be carried out; (also switch is comprised by back plane circuitry 42; as analog switch 421,422); it couples the first communication port CR1 and the second communication port CR2 of each power supply unit, makes the second communication port (CR2) of the power supply unit of previous stage couple first communication port (CR1) of the power supply unit of next stage.By this, make the second communication port CR2 of power supply units at different levels of normal work, the annexation of the first communication port CR1 do not interrupt.And then carry out step S520, S530, S540, again can carry out step S510 after step S530, S540 terminate.
The control method of the server power supply supply system of following explanation the present embodiment is applied to example when 2+1 server power supply supply system, as the explanation of Fig. 6-1,6-2,6-3,7-1,7-2,7-3.
Referring to Fig. 4 and Fig. 6-1,6-2,6-3, Fig. 6-1,6-2 and 6-3 are the process flow diagrams that the power supply unit of the 2+1 server power supply supply system that the embodiment of the present invention provides sequentially enters aggressive mode.Three power supply units sequentially enter aggressive mode, the power supply unit of tandem communication construction sequentially represents with power supply unit PSU1, PSU2, PSU3 of Fig. 4, when power supply unit PSU1 has been operating as aggressive mode, power supply unit PSU2 continues and enters aggressive mode, and then power supply unit PSU3 enters aggressive mode again.Initial step S611, S612, S613 judge whether each power supply unit normally powers on.With reference to Fig. 6-1, in step s 611, judge the voltage status of the power supply status end PG of power supply unit PSU1, as PG=1 (voltage status represents normal), carry out step S622, close external analog switch and the first communication port CR1 of power supply unit PSU1 is not connected with the signal of second communication port CR2.It is worth mentioning that, external analog switch described herein is the analog switch 421 as Fig. 4.Anti-, when PG ≠ 1, carry out step S621, open external analog switch and the first communication port CR1 of power supply unit PSU1 is connected with the signal of second communication port CR2.Such as: the back plane circuitry 42 of Fig. 4 has at least one switch (as analog switch 421,422), when described switch conduction, be connected with the signal of second communication port CR2 in order to make the first communication port CR1 of the power supply unit (such as power supply unit PSU2 or power supply unit PSU3) corresponding to described switch (such as analog switch 421 or analog switch 422).Then, with reference to Fig. 6-2, in step S612, judge the voltage status of the power supply status end PG of power supply unit PSU2, work as PG=1, carry out step S624, close external analog switch (analog switch 421 as Fig. 4) and the first communication port CR1 of power supply unit PSU2 is not connected with the signal of second communication port CR2.Anti-, when PG ≠ 1, carry out step S623, opening external analog switch (analog switch 421 as Fig. 4) makes the first communication port CR1 of power supply unit PSU2 be connected with the signal of second communication port CR2, namely make the electrical connection of the second communication port CR2 of power supply unit PSU1 and the first communication port CR1 of power supply unit PSU2 originally extend to the second communication port CR2 of power supply unit PSU2, and extend to the first communication port CR1 of power supply unit PSU3 further.With reference to Fig. 6-3, in step S613, judge the voltage status of the power supply status end PG of power supply unit PSU3, work as PG=1, carry out step S626, close external analog switch (analog switch 422 as Fig. 4) and the first communication port CR1 of power supply unit PSU3 is not connected with the signal of second communication port CR2.Anti-, when PG ≠ 1, carry out step S625, open external analog switch (analog switch 422 as Fig. 4) and the first communication port CR1 of power supply unit PSU3 is connected with the signal of second communication port CR2.Above-mentioned step is the voltage status of the power supply status end PG judging each power supply unit, to make the signal annexation of the communication port of power supply unit at different levels not interrupt, that is corresponds to step S511, the S512 of Fig. 5 B.
Then, refer again to Fig. 6-1, for power supply unit PSU1, after step S621 and step S622 terminates, carry out step S631 to judge the state of the first communication port CR1 of power supply unit PSU1.Such as work as CR1=1, carry out step S642 and enter aggressive mode to set power supply unit PSU1, anti-, carry out step S641 and enter sleep pattern to set power supply unit PSU1.After step S641, carry out step S662, the second communication port CR2=0 of setting power supply unit PSU1.After step S642, then carry out step S651, judge the first communication port CR1 of power supply unit PSU1 and the logic state of second communication port CR2, and judge whether the magnitude of voltage Vcs of current-sharing signal is greater than default threshold values, such as judge whether CR1=1, whether CR2=0, the magnitude of voltage Vcs of current-sharing signal is greater than threshold values 5.6V, and wherein threshold values 5.6V is such as 70% ~ 80% load corresponding to server power supply supply system.As CR1=1 and CR2=0 time, representing this power supply unit PSU1 is the afterbody operated in tandem communication construction in the power supply unit of aggressive mode, further, when the magnitude of voltage Vcs of current-sharing signal is greater than threshold values 5.6V, representative needs to allow the power supply unit PSU2 of next stage enter aggressive mode to promote power-efficient, therefore then step S661 is carried out, the second communication port CR2=1 of setting power supply unit PSU1.By this, the first communication port CR1 of power supply unit PSU2 can detect the logic state of the second communication port CR2 of power supply unit PSU1, and when the second communication port CR2=1 of power supply unit PSU1 being detected, power supply unit PSU2 then enters aggressive mode (please refer to the follow-up explanation for Fig. 6-2).Anti-, when the above-mentioned condition of step S651 is false, then carry out step S662, the second communication port CR2=0 of setting power supply unit PSU1.After step 662 terminates, again carry out step S631.
Then, for power supply unit PSU2, referring again to Fig. 6-2, after step S623 and step S624 terminates, step S632 is carried out to judge the logic state of the first communication port CR1 of power supply unit PSU2.Such as work as CR1=1, carry out step S644 and enter aggressive mode to set power supply unit PSU2, anti-, carry out step S643 and enter sleep pattern to set power supply unit PSU2.After step S643, carry out step S664, the second communication port CR2=0 of setting power supply unit PSU2.After step S644, then carry out step S652, judge the first communication port CR1 of power supply unit PSU2 and the logic state of second communication port CR2, and judge whether the magnitude of voltage Vcs of current-sharing signal is greater than default threshold values, such as judge whether CR1=1, whether CR2=0, the magnitude of voltage Vcs of current-sharing signal is greater than threshold values 5.6V, and threshold values 5.6V is such as 70% ~ 80% load corresponding to server power supply supply system.As CR1=1 and CR2=0 time, representing this power supply unit PSU2 is the afterbody power supply unit operated in tandem communication construction in the power supply unit of aggressive mode, further, when magnitude of voltage Vcs is greater than threshold values 5.6V, representative needs to allow the power supply unit PSU3 of next stage enter aggressive mode to promote power-efficient, therefore then step S663 is carried out, the second communication port CR2=1 of setting power supply unit PSU2.By this, the first communication port CR1 of power supply unit PSU3 can detect the logic state of the second communication port CR2 of power supply unit PSU2, and when the second communication port CR2=1 of power supply unit PSU2 being detected, power supply unit PSU3 then enters aggressive mode (please refer to the follow-up explanation for Fig. 6-3).Anti-, when the above-mentioned condition of step S652 is false, then carry out step S664, the second communication port CR2=0 of setting power supply unit PSU2.After step 664 terminates, again carry out step S632.
From Fig. 6-1, Fig. 6-2 and Fig. 6-3, the control flow of power supply unit PSU1, PSU2, PSU3 is set as identical.According to same principle, for power supply unit PSU3, referring again to Fig. 6-3, after step S625 and step S626 terminates, carry out step S633, judge the logic state of the first communication port CR1 of power supply unit PSU3.Such as work as CR1=1, carry out step S646 and enter aggressive mode to set power supply unit PSU3, anti-, carry out step S645 and enter sleep pattern to set power supply unit PSU3.After step S645, carry out step S666, the second communication port CR2=0 of setting power supply unit PSU3.After step S646, then carry out step S653, judge the first communication port CR1 of power supply unit PSU3 and the logic state of second communication port CR2, and judge whether the magnitude of voltage Vcs of current-sharing signal is greater than default threshold values, such as judge whether CR1=1, whether CR2=0, the magnitude of voltage Vcs of current-sharing signal is greater than threshold values 5.6V, and threshold values 5.6V is such as 70% ~ 80% load corresponding to server power supply supply system.As CR1=1 and CR2=0 time, representing this power supply unit PSU3 is the afterbody operated in tandem communication construction in the power supply unit of aggressive mode, further, when magnitude of voltage Vcs is greater than threshold values 5.6V, representative needs to allow the power supply unit of next stage (if there is) (such as power supply unit PSU4) enter aggressive mode to promote power-efficient, therefore, then carry out step S665, the second communication port CR2=1 of setting power supply unit PSU3.Anti-, when the above-mentioned condition of step S653 is false, then carry out step S666, the second communication port CR2=0 of setting power supply unit PSU3.After step 666 terminates, again carry out step S633.
Fig. 7-1,7-2 and 7-3 are the process flow diagrams that the power supply unit inverted sequence of the 2+1 server power supply supply system that example of the present invention provides enters sleep pattern.When load reduces, power supply unit PSU1, PSU2, PSU3 enter sleep pattern with inverted sequence.Power supply unit PSU3 is introduced into sleep pattern, and then power supply unit PSU2 enters sleep pattern again, and the rest may be inferred.First, step S711, S712, S713 judge whether each power supply unit normally powers on.The step S711 of Fig. 7-1, S721, S722 are same as step S611, S621, S622 of Fig. 6-1 respectively.The step S712 of Fig. 7-2, S723, S724 are same as step S612, S623, S624 of Fig. 6-2 respectively.The step S713 of Fig. 7-3, S725, S726 are same as step S613, S625, S626 of Fig. 6-3 respectively.
Then, in order to the convenience that illustrates and fluency, please also refer to Fig. 7-3, when load reduces, most advanced enter sleep pattern be power supply unit PSU3.Carry out step S733 to judge whether power supply unit PSU3 meets following condition: the logic state of (1) first communication port CR1 is 1 and the logic state of (2) second communication port CR2 changes to 0 by 1 and continues 0.5ms (millisecond).When the power supply unit meeting above-mentioned condition and then represent next stage transmits sleep signal (SL) to the second communication port CR2 of power supply unit PSU3, then step S746 is carried out, the second communication port CR2=0 of setting power supply unit PSU3, now power supply unit PSU3 is the afterbody operated in tandem communication construction in the power supply unit of aggressive mode.Anti-, then carry out step S745, the second communication port CR2=1 of setting power supply unit PSU3.
Then, in step S753, judge the first communication port CR1 of power supply unit PSU3 and the logic state of second communication port CR2, and judge whether the magnitude of voltage Vcs of current-sharing signal is less than default threshold values, such as judge whether CR1=1, whether CR2=0, the magnitude of voltage Vcs of current-sharing signal is less than threshold values 2.4V, and threshold values 2.4V is such as 30% ~ 40% load corresponding to server power supply supply system.As CR1=1 and CR2=0 time, representing this power supply unit PSU3 is the afterbody operated in tandem communication construction in the power supply unit of aggressive mode, further, when magnitude of voltage Vcs is less than threshold values 2.4V, representing power supply unit PSU3 needs to enter sleep pattern to promote power-efficient.Therefore, carry out step S763, the first communication port CR1 of setting power supply unit PSU3 changes to 0 by 1 and continues 1ms (millisecond), and then replying is 1.Step S763 represents that power supply unit PSU3 needs to enter sleep pattern and this situation notified the power supply unit PSU2 of previous stage.In other words, mentioned by step S763 i.e. preceding embodiment, export the second communication port CR2 of sleep signal (SL) to the power supply unit PSU2 of previous stage.When the second communication port CR2 of power supply unit PSU2 receives this sleep signal (SL), power supply unit PSU2 can force to make the logic state of its second communication port CR2 for " 0 ", operate in afterbody in the power supply unit of aggressive mode to represent power supply unit PSU2 by becoming these.Anti-, when the condition of step S753 does not meet, then get back to step S713.
Then, in step S773, judge that power supply unit PSU3 is after the delay of 1.5ms (millisecond), whether the CR1=0 of power supply unit PSU3.As the CR1=0 of power supply unit PSU3, then represent power supply unit PSU2 and received sleep signal (SL) and the logic state of its second communication port CR2 is set to " 0 ".Then, then can carry out step S783, power supply unit PSU3 enters sleep pattern.Anti-, when the logic state of the CR1 of power supply unit PSU3 is not " 0 " time, represent power supply unit PSU2 and receive sleep signal (SL) not yet correctly, now get back to step S713.
Then, please refer to Fig. 7-2, for power supply unit PSU2, carry out step S732 to judge whether power supply unit PSU2 meets following condition: the logic state of (1) first communication port CR1 is 1 and the logic state of (2) second communication port CR2 changes to 0 by 1 and continues 0.5ms (millisecond).When the power supply unit PSU3 meeting above-mentioned condition and then represent next stage transmits sleep signal (SL) to the second communication port CR2 of power supply unit PSU2, then step S744 is carried out, the second communication port CR2=0 of setting power supply unit PSU2, now power supply unit PSU2 operates in the afterbody in the power supply unit of aggressive mode.Anti-, then carry out step S743, the second communication port CR2=1 of setting power supply unit PSU2.
Then, in step S752, judge the first communication port CR1 of power supply unit PSU2 and the logic state of second communication port CR2, and judge whether the magnitude of voltage Vcs of current-sharing signal is less than default threshold values, such as judge whether CR1=1, whether CR2=0, the magnitude of voltage Vcs of current-sharing signal is less than threshold values 2.4V, and threshold values 2.4V is such as 30% ~ 40% load corresponding to server power supply supply system.As CR1=1 and CR2=0 time, representing this power supply unit PSU2 is the afterbody operated in tandem communication construction in the power supply unit of aggressive mode, further, when magnitude of voltage Vcs is less than threshold values 2.4V, representing power supply unit PSU2 needs to enter sleep pattern to promote power-efficient.Therefore, carry out step S762, the first communication port CR1 of setting power supply unit PSU2 changes to 0 by 1 and continues 1ms (millisecond), and then replying is 1.Step S762 represents that power supply unit PSU2 needs to enter sleep pattern and this situation notified the power supply unit PSU1 of previous stage.In other words, mentioned by step S762 i.e. preceding embodiment, export the second communication port CR2 of sleep signal (SL) to the power supply unit PSU1 of previous stage.When the second communication port CR2 of power supply unit PSU1 receives this sleep signal (SL), power supply unit PSU1 can force to make the logic state of its second communication port CR2 for " 0 ", operate in afterbody in the power supply unit of aggressive mode to represent power supply unit PSU1 by becoming these.Anti-, when the condition of step S752 does not meet, then get back to step S712.
Then, in step S772, judge that power supply unit PSU2 is after the delay of 1.5ms (millisecond), whether the CR1=0 of power supply unit PSU2.As the CR1=0 of power supply unit PSU2, then represent power supply unit PSU1 and received sleep signal (SL) and the logic state of its second communication port CR2 is set to " 0 ".Then, then can carry out step S782, power supply unit PSU2 enters sleep pattern.Anti-, when the CR1 logic state of power supply unit PSU2 is not " 0 " time, represent power supply unit PSU1 and receive sleep signal (SL) not yet correctly, now get back to step S712.
According to same principle, for power supply unit PSU1, please refer to Fig. 7-1, step S731 is identical with step S732, S733.Step S741 is same as step S743, S745.Step S742 is same as step S744, S746.Step S751 is same as step S752, S753.Step S761 is same as step S762, S763.Step S771 is same as step S772, S773.Step S781 is same as step S782, S783.Identical principle of operation does not repeat them here.From Fig. 7-1, Fig. 7-2 and Fig. 7-3, the control flow of power supply unit PSU1, PSU2, PSU3 is set as identical.According to above-mentioned, power supply unit PSU1, PSU2, PSU3 inverted sequence can enter sleep pattern one by one according to load reduction.
In sum, the server power supply supply system that the embodiment of the present invention provides and control method thereof, utilize hardware framework and software to set all identical multiple power supply units and form tandem communication construction, and according to the load condition obtained by load distribution bus (loadsharebus), with the operator scheme of switching power supply, reach energy-conservation effect by this.The server power supply supply system that the embodiment of the present invention provides and control method thereof adopt traditional Current Sharing Technology, to meet functional requirement traditionally, and are the spare power supply system without master-slave mode and method.Because each power supply unit framework is identical with setting, need not individual settings, therefore when carrying out keeping in repair or maintaining, operating personnel directly can carry out hot plug to this server power supply supply system, need not notify user terminal system.Moreover, by the operator scheme of auto switching electric source supply, and automatically can reach energy-saving effect, loaded down with trivial details setting need not be performed by user side again, and guarantee that each power supply unit is operated in optimum efficiency section (such as: 30% ~ 80% load).In addition, because its maintenance program is simple, user can be made to reach minimum maintenance man-hours and relevant human cost.In addition, the server power supply supply system that the embodiment of the present invention provides and control method thereof possess height extendibility, can support N+1 server power supply supply system.
The foregoing is only embodiments of the invention, it is also not used to limit to right of the present invention.

Claims (20)

1. a server power supply supply system, is characterized in that, comprising:
At least two power supply units, described at least two power supply units connect a load distribution bus, and in order to output power to load parallel to each other, each this power supply unit can dynamically operate in an aggressive mode or a sleep pattern according to load state, wherein a power supply unit determines level power supply supply as one of those power supply units operating in this aggressive mode, and each this power supply unit comprises:
One control module, this control module connects this load distribution bus, and produce a wake-up signal or a sleep signal according to the current-sharing signal from this load distribution bus, this current-sharing signal represents the load condition of described server power supply supply system, wherein when the operation of this power supply unit changes into this aggressive mode by this sleep pattern, this control module makes the operation of this power supply unit change into this aggressive mode by this sleep pattern according to this wake-up signal from this power supply unit of previous stage, wherein when the operation of this power supply unit changes into this sleep pattern by this aggressive mode, this control module produces this sleep signal,
One first communication port, couples this control module; And
One second communication port, couples this control module;
Wherein, this first communication port of each this power supply unit couples this second communication port of this power supply unit of previous stage, and this second communication port of each this power supply unit couples this first communication port of this power supply unit of rear stage to form tandem communication construction;
Wherein, this first communication port is in order to receive this wake-up signal of this second communication port output of this power supply unit of previous stage and to export this sleep signal this second communication port to this power supply unit of previous stage, and this second communication port is in order to receive this sleep signal of this first communication port output of this power supply unit of rear stage and to export this wake-up signal this first communication port to this power supply unit of rear stage.
2. server power supply supply system according to claim 1, it is characterized in that, when this current-sharing signal is greater than a threshold values, this control module operating in this power supply unit of the afterbody of described at least two power supply units of this aggressive mode exports this wake-up signal this first communication port to this power supply unit of rear stage by this second communication port, changes into this aggressive mode to make the operation of this power supply unit of rear stage by this sleep pattern.
3. server power supply supply system according to claim 1, it is characterized in that, when this current-sharing signal is less than a threshold values, this control module operating in this power supply unit of the afterbody of described at least two power supply units of this aggressive mode exports this sleep signal this second communication port to this power supply unit of previous stage by this first communication port, and makes the operation of this power supply unit change into this sleep pattern by this aggressive mode.
4. server power supply supply system according to claim 1, is characterized in that, this current-sharing signal is a magnitude of voltage, and this magnitude of voltage is proportional to the load of server power supply supply system.
5. server power supply supply system according to claim 1, is characterized in that, described at least two power supply units sequentially enter aggressive mode according to the increase of this load, and inverted sequence enters sleep pattern according to the minimizing of this load.
6. server power supply supply system according to claim 1, is characterized in that, also comprise:
One back plane circuitry; couple this first communication port and this second communication port of each this power supply unit; wherein when this power supply unit of an intergrade is shut down, this back plane circuitry makes this second communication port of this power supply unit of previous stage couple this first communication port of this power supply unit of rear stage.
7. server power supply supply system according to claim 6, is characterized in that, this back plane circuitry has at least one switch, is connected with the signal of this second communication port in order to make this first communication port of this power supply unit corresponding to this switch.
8. according to the servo power supply supply system of claims the 2nd, it is characterized in that, this threshold value is a magnitude of voltage, one of this magnitude of voltage representative server power system default load number percent.
9. server power supply supply system according to claim 2, is characterized in that, this threshold values is a magnitude of voltage, and this magnitude of voltage is 70% ~ 80% load of server power supply supply system.
10. server power supply supply system according to claim 3, is characterized in that, this threshold values is a magnitude of voltage, and this magnitude of voltage is 30% ~ 40% load of server power supply supply system.
The control method of 11. 1 kinds of server power supply supply systems, it is characterized in that, for a server power supply supply system, this server power supply supply system comprises at least two power supply units, described at least two power supply units connect a load distribution bus, and in order to output power to load parallel to each other, each this power supply unit can dynamically operate in an aggressive mode or a sleep pattern according to load state, wherein a power supply unit determines level power supply supply as one of those power supply units operating in this aggressive mode, each this power supply unit has one first communication port and a second communication port, this first communication port of each this power supply unit couples this second communication port of this power supply unit of previous stage, this second communication port of each this power supply unit couples this first communication port of this power supply unit of rear stage to form tandem communication construction, this control method comprises:
At least two power supply units described in distributing according to a current-sharing signal of this load distribution bus are provided to the electric power of this load;
When this current-sharing signal is greater than first threshold values, this decision level power supply supply operated in described at least two power supply units of this aggressive mode exports this wake-up signal this first communication port to this power supply unit of rear stage by this second communication port, changes into this aggressive mode to make the operation of this power supply unit of rear stage by this sleep pattern; And
When this current-sharing signal is less than second threshold values, this decision level power supply supply operated in described at least two power supply units of this aggressive mode changes into this sleep pattern by this aggressive mode, and exports this sleep signal this second communication port to this power supply unit of previous stage by this first communication port.
12. the control method of server power supply supply system according to claim 11, is characterized in that, this current-sharing signal is a magnitude of voltage, and this magnitude of voltage is proportional to the load of this server power supply supply system.
The control method of 13. server power supply supply systems according to claim 11, is characterized in that, also comprise:
When this power supply unit of an intergrade is shut down; coupled this first communication port and this second communication port of each this power supply unit by a back plane circuitry, make this second communication port of this power supply unit of previous stage couple this first communication port of this power supply unit of rear stage.
The control method of 14. server power supply supply systems according to claim 13, it is characterized in that, this back plane circuitry has at least one switch, and the control method of this server power supply supply system also comprises:
Open this switch, be connected with the signal of this second communication port in order to make this first communication port of this power supply unit corresponding to this switch.
The control method of 15. server power supply supply systems according to claim 11, is characterized in that, described in distributing at this current-sharing signal according to this load distribution bus, at least two power supply units are provided in the step of the electric power of this load, also comprise:
Make formation tandem communication construction at least part of described at least two power supply units operate in this aggressive mode, wherein operate in this power supply unit of the afterbody in described at least two power supply units of this aggressive mode in order to notify sleep state this power supply unit to previous stage own, or wake this power supply unit of rear stage up.
The control method of 16. server power supply supply systems according to claim 11, is characterized in that, this first and this second threshold values be a magnitude of voltage, this first threshold values is identical with this second threshold values.
The control method of 17. server power supply supply systems according to claim 11, is characterized in that, this first and this second threshold values be a magnitude of voltage, this first threshold values is not identical with this second threshold values.
The control method of 18. server power supply supply systems according to claim 17, is characterized in that, this first threshold values is a magnitude of voltage, and this magnitude of voltage is 70% ~ 80% load of server power supply supply system.
The control method of 19. server power supply supply systems according to claim 17, is characterized in that, this second threshold values is a magnitude of voltage, and this magnitude of voltage is 30% ~ 40% load of server power supply supply system.
The control method of 20. server power supply supply systems according to claim 11, it is characterized in that, this first communication port operating in this power supply unit of the afterbody in described at least two power supply units of this aggressive mode is different from the logic state of this second communication port.
CN201510400374.7A 2014-07-11 2015-07-09 Server POWER SUPPLY SYSTEM AND CONTROL METHOD THEREOF Pending CN105260002A (en)

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